Three-dimensional effects on energetic particle confinement and stability

Journal Article · Sun May 15 00:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3575626· OSTI ID:21537872

Spong, D A ^[1]

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1. One Bethel Valley Road, Bldg. 5700, P. O. Box 2008, MS-6169, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6169 (United States)

Energetic particle populations in magnetic confinement systems are sensitive to symmetry-breaking effects due to their low collisionality and long confined path lengths. Broken symmetry is present to some extent in all toroidal devices. As such effects preclude the existence of an ignorable coordinate, a fully three-dimensional analysis is necessary, beginning with the lowest order (equilibrium) magnetic fields. Three-dimensional techniques that have been extensively developed for stellarator configurations are readily adapted to other devices such as rippled tokamaks and helical states in reversed field pinches. This paper will describe the methods and present an overview of recent examples that use these techniques for the modeling of energetic particle confinement, Alfven mode structure and fast ion instabilities.

• OSTI ID: 21537872
• Journal Information: Physics of Plasmas, Vol. 18, Issue 5; Other Information: DOI: 10.1063/1.3575626; (c) 2011 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALFVEN WAVES
MAGNETIC CONFINEMENT
PLASMA
PLASMA INSTABILITY
REVERSE-FIELD PINCH
STABILITY
STELLARATORS
SYMMETRY BREAKING
THREE-DIMENSIONAL CALCULATIONS
TOKAMAK DEVICES
CLOSED PLASMA DEVICES
CONFINEMENT
HYDROMAGNETIC WAVES
INSTABILITY
PINCH EFFECT
PLASMA CONFINEMENT
THERMONUCLEAR DEVICES